Cambridge United boss Shaun Derry said that the decisions went against him after his side lost 3-1 at Coventry City on Tuesday night.
Derry told Cambridge News: “There was two very, very clear decisions that didn’t go our way and I thought if they did go our way there would have been a different final outcome on the game.
“With the greatest of respect to Coventry, and I think they’re a very good team, they came out the traps and put us on the back foot in the first 20 minutes.
“The start of the game disappointed me as I wanted us to be the ones that came out a little bit quicker than them but we didn’t but then we found a way into the game.
“We made a little bit of a tactical change after 20, 25 minutes and it was us who found the front foot way of playing and I thought we done really well in the second half.
“I thought the second half performance [was better] and I think the fans who came and travelled and got right behind us could recognise that.
“I’m frustrated that we didn’t have that intensity to come out the blocks and because we didn’t we were on the receiving end of two goals and like I said one of them shouldn’t have been allowed, in my opinion.
“I have spoken to the officials and I have went in, in the right way. I full respect the job that they’ve got and I look at how difficult the job is for the team of the officials. I understand that, but there’s three major decisions tonight and in my opinion all there have went against us.”